How much horsepower does a pro stock engine produce?
Nobody's talking, but it's easy to estimate the horsepower production of today's Pro Stock engines at about 1,400 HP; probably even more by the time you read this.
How fast is a Pro Stock Motorcycle?
Senior editor Kevin McKenna takes you inside a Pro Stock Motorcycle engine with this technical breakdown. Competitors in Pro Stock Motorcycle have a choice of two drastically different powerplants, both of which are capable of 6.7-second performances at speeds approaching 200 mph.
Which pushrod engines have the highest rev limits?
With a factory rev limit in both of its domestic applications (there were a number of other global production applications) of 7,000 rpm, the LS7 is the highest-revving pushrod engine on the list.
What does a Pro Stock piston look like?
A typical Pro Stock piston (right) next to a standard 454-type piston. Note the extremely short compression height (the distance from the wrist pin centerline to the piston deck), the overall shortness of the skirts, and the narrow ring grooves for the .7mm top and second rings and the 3mm oil ring.
How much power does a Pro Stock engine make?
Modern pro stock engines generally produce around 2.5 hp/in3 (114 kW/L), and make upwards of 1,500 hp while being naturally aspirated. A complete NHRA pro stock engine can cost upwards of $100,000.
What engines are used in Pro Stock drag racing?
Chevrolet's top-secret Pro Stock race engine has been shrouded in mystery for decades. It's known as the Drag Race Competition Engine (DRCE), and its architecture has been massaged into a nearly 10,000-rpm, fuel-injected, 500-cid race mill that actually began life with the Oldsmobile brand.
What is the bore and stroke of a Pro Stock engine?
Early 500-inch Pro Stock engines using the old Bow Tie block had a bore around 4.600-inch. (For more on the first NHRA Pro Stock championship engine, check out this EngineLabs story.) Today, the smallest bore is 4.715-inch with some running as large as 4.750. That puts the crankshaft stroke as low as 3.520-inch.
How many gears does a Pro Stock car have?
5-speed2020: Similar in design to the 1970s gearboxes, current Pro Stock cars utilize a 5-speed manual transmission from G-Force or Liberty. Straight-cut gears allow for clutchless gear changes, and teams frequently change internal gear ratios to suit changing weather and track conditions.
How much horsepower does a Pro Stock Motorcycle make?
The best-known form of motorcycle drag racing is the Pro Stock Bike category, although several other categories exist, including Top Fuel and Pro Street. Motorcycles in the Top Fuel category are fueled by nitro methane and can make nearly 1,500 horsepower.
What is the difference between Pro Mod and Pro Stock?
The body of a Pro Modified car is somewhat similar to a Pro Stock race car, yet also radically different at the same time. Whereas Pro Stock cars retain street identification, Pro Modified cars' bodies are just that: modified.
Why do smaller engines rev higher?
If you want a small & compact, lightweight, engine, keep the cubic capacity small, & hence the rpm will need to increase to achieve the same total 'flow'. The more you can compress the charge prior to ignition, the greater the relative expansion, & the more power that can be absorbed from the process.
Are there any Fords in NHRA Pro Stock?
In 2018, there were two. Fords were non-existent. Having a Chevrolet-dominated entry list is nothing new for NHRA; even as far back as the 1980 NHRA U.S. Nationals, 23 of the 36 cars entered in Pro Stock were Bowties.
How much horsepower does a Pro Stock have?
DeFlorian's Mountain Motor Pro Stock engine measures in at 825 cubic inches more than double the size of say, a Dodge Demon. Some teams are using up to 840 ci, and most are producing around 2,000 hp, naturally aspirated. The record for the breed currently stands at 6.225 at 226.70 mph.
How fast do Pro Stock cars go?
210 mphPro Stock engines use electronic fuel injection and spec gasoline and are restricted to a maximum of 500 cubic inches. They can make in excess of 1,300 horsepower. A competitive Pro Stock car can run in the 6.5s at more than 210 mph.
Do NASCAR drivers use clutch?
Unlike the transmissions on normal manual cars, NASCAR cars do not require the driver to press the clutch pedal while shifting gears. Although NASCAR cars have clutch pedals, these are rarely used when shifting gears. Instead, drivers shift gears by matching the car's speed to the car's RPM (revolutions per minute).
How do Pro Stock cars shift gears?
0:322:10Inside the Transmission of an NHRA Pro-Stock - YouTubeYouTubeStart of suggested clipEnd of suggested clipHere. Second gear right there third gear right here fourth gear here nine fifth gear here and thenMoreHere. Second gear right there third gear right here fourth gear here nine fifth gear here and then everything is running together they can take about a quart and a half is all we run.
How many injectors are allowed on a Pro Stock?
Only eight injectors will be allowed and they must be mounted externally on the intake manifold runners. Also, the throttle body must be mounted forward facing and fit under a stock-style hood. The iconic but rather noticeable hood scoop on current Pro Stock vehicles will be eliminated.
Can Lambda sensors be used in dyno testing?
During dyno testing, of course, teams could use Lambda sensors for each cylinder to help develop fuel maps. The HP is also capable of supporting knock sensors, but Lawrence says that development time could probably be better spent on other tuning choices. “Any time you take timing out you’ll slow down,” he says.
How fast is Warren Johnson?
Winner of six Pro Stock World Championships, "The Professor" was also the first to exceed 180 MPH, 190 MPH, and 200 MPH in an NHRA-legal Pro Stocker . He was named as one of NHRA's Top 50 Best Drivers, and is a member of the International Motorsports Hall of Fame.
Why do you need a shorter rod?
A longer rod simply puts the wrist pin bore higher on the piston, which lets you build a shorter, lighter piston. By the same token, a shorter rod is lighter than a long rod, so you need to shorten the deck height to keep everything compact.
Can you rev an engine during a burnout?
which got the response "sometimes, especially if the driver gets overly enthusiastic on the burnout". For those of you who haven't been there, it's extremely easy to over-rev an engine during the burnout, since the tires are spinning so freely that the engine is essentially operating under a no-load condition.
What is a LT5?
While not entirely domestic (in the same vein as the Ford SHO’s collaboration with Yamaha and Cosworth), General Motors’ LT5 was created in conjunction with recently-acquired Lotus, to power the 1990 Corvette ZR-1. In a radical departure from the previous small-block Chevrolet design that was powering Corvettes, the LT5 was a 32-valve, dual-overhead cam engine, that, like the L98 it was replacing, displaced 350 cubic inches.
How many RPM does a LS7 have?
While it is common knowledge that the LS7 is quite capable of surviving at far more than 7,000 rpm, in its production configuration, the camshaft profile and intake manifold configuration become limiting factors. In aftermarket configurations, the LS7 has proven that factory-ish pushrod engines can really spin.
What engine was built by Mercury Marine?
With a 7,200 rpm factory rev-limit and significantly increased output of 375 horsepower, the LT5 was an all-aluminum overhead cam engine built by Mercury Marine for GM.
What is the highest rev limiter on a Ford 5.2L?
The GT350 variant of the already-high-revving Coyote engine, the 5.2-liter Voodoo, has the highest factory rev-limiter of anything on the list, at 8,250 rpm.
What is a V8 SHO?
The V8 SHO was a continuation of the V6 SHO program, with Yamaha-designed heads, and a block that can trace it’s lineage to Cosworth. The successor to another engine on this list (in the video) – the Ford SHO V6 – the 3.4L V8 model was an over-square 60-degree engine that was based loosely on the Duratec architecture.
How many rpm does a Yamaha V8 have?
While developed with Yamaha, like the V6 SHO, the four-valve dual overhead cam V8 variant employed a different valvetrain design, which, while allowing the engine to spin to 7,000 rpm with ease, ended up being problematic.
How many cylinders are in a V8 engine?
Another surprising part of the list, is that V8 engines makes up a majority of the high-revving production engines, with only one four-cy linder, and two V6 engines making up the non-V8 contingent. Usually when you bring up high-RPM factory engines, small-displacement four cylinder engines are the first thing that generally pops to mind.